#!/bin/bash
# Copyright 2014-2022 Nikos Giotis <nikos.giotis@gmail.com>, Athens, Greece
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# 20221201 ng: 
# - move some files back in /lib/udev, there other udev related executables
#   in /lib/udev directory also. This way they are available and included
#   to the initrd.gz created by mkinitrd for early boot device discovery.
# - move bcache-super-show to /lib/udev also for initrd inclusion.
# - strip binaries the standard slackbuilds.org way
# - update the package version and get the sources from kernel.org
# 20220404 bkw: Modified by SlackBuilds.org, BUILD=3:
# - i486 => i586.
# - move probe-bcache and bcache-register binaries to /usr/sbin.
# - strip binaries.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=bcache-tools
VERSION=${VERSION:-20221201_2499ff2}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
SRCVER=2499ff2dd78f236c7809016be5dfff836454396b

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
       *) export ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686 -fgnu89-inline"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686 -fgnu89-inline"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC -fgnu89-inline"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2 -fgnu89-inline"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$SRCVER.tar.gz
cd $PRGNAM-$SRCVER

# Patches for slackware compatibility
# Disable initramfs, initcpio and dracut installations from 'make install' step
zcat $CWD/no-initramfs-initcpio-dracut-install.patch.gz | patch -p0 --verbose
# Convert RUN{builtin} udev rule to RUN
zcat $CWD/udev-rules-no-run-builtin.patch.gz | patch -p0 --verbose

# Fix permissions
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \+ -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \+

# Build
cd $TMP/$PRGNAM-$SRCVER

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
make

mkdir -p $PKG/usr/sbin
mkdir -p $PKG/lib/udev
mkdir -p $PKG/lib/udev/rules.d
mkdir -p $PKG/usr/share/man/man8
make install DESTDIR=$PKG

# Move bcache-super-show in /lib/udev as it is needed by bcache-export-cached
mv $PKG/usr/sbin/bcache-super-show $PKG/lib/udev

# Move /usr/sbin/* to /sbin
mkdir -p $PKG/sbin
mv $PKG/usr/sbin/* $PKG/sbin
rmdir $PKG/usr/sbin

# Link bcache-super-show back to /sbin
pushd $PKG/sbin
ln -s /lib/udev/bcache-super-show bcache-super-show
popd

sed -i "s,bcache-super-show,/lib/udev/bcache-super-show," $PKG/lib/udev/bcache-export-cached

# Use absolute paths in udev rules
for i in probe-bcache bcache-register bcache-export-cached; do
    sed -i "s,$i,/lib/udev/$i," $PKG/lib/udev/rules.d/*.rules
done

# Man pages in wrong place, move and gzip.
mv $PKG/usr/share/man $PKG/usr/
gzip -9 $PKG/usr/man/man*/*
rmdir $PKG/usr/share

# strip executables
find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

# Documentation
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
cat $TMP/$PRGNAM-$SRCVER/README > $PKG/usr/doc/$PRGNAM-$VERSION/README
cat $TMP/$PRGNAM-$SRCVER/COPYING > $PKG/usr/doc/$PRGNAM-$VERSION/COPYING

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
